Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 20, 2003. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 528 | N09 | E64 | 15 | 0290 | Beta | Dec 26, 2003 | Jan 1, 2004 | Jan 15, 2004 |
| № 527 | S15 | W69 | 01 | 0010 | Alpha | Dec 16, 2003 | Dec 22, 2003 | Jan 5, 2004 |
| № 525 | N10 | E33 | 14 | 0180 | Beta | Dec 23, 2003 | Dec 30, 2003 | Jan 13, 2004 |
| № 524 | S08 | E27 | 04 | 0020 | Beta | Dec 23, 2003 | Dec 30, 2003 | Jan 12, 2004 |
| № 523 | S17 | E36 | 04 | 0040 | Beta | Dec 24, 2003 | Dec 30, 2003 | Jan 13, 2004 |
| № 521 | S12 | W45 | 02 | 0010 | Beta | Dec 17, 2003 | Dec 24, 2003 | Jan 7, 2004 |
| № 520 | N03 | W46 | 03 | 0100 | Beta | Dec 17, 2003 | Dec 24, 2003 | Jan 7, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to December 2003. The gray background is the average SSN index.
